//: c15:ChatterClient.java
// From Thinking in Java, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// Tests the ChatterServer by starting multiple 
// clients, each of which sends datagrams.
// Adpated by Agustin J. Gonzalez to remove Dgram class dependency.

import java.net.*;
import java.io.*;

public class ChatterClient_agv extends Thread {
  // Can listen & send on the same socket:
  private DatagramSocket s;
  private InetAddress hostAddress;
  private byte[] buf = new byte[1000];
  private DatagramPacket dp = new DatagramPacket(buf, buf.length);
  private int id;

  public ChatterClient_agv(int identifier) {
    id = identifier;
    try {
      // Auto-assign port number:
      s = new DatagramSocket();
      hostAddress = InetAddress.getByName("localhost");
    } catch(UnknownHostException e) {
      System.err.println("Cannot find host");
      System.exit(1);
    } catch(SocketException e) {
      System.err.println("Can't open socket");
      e.printStackTrace();
      System.exit(1);
    } 
    System.out.println("ChatterClient starting");
  }
  public void run() {
    try {
      for(int i = 0; i < 25; i++) {
        String outMessage = "Client #" + id + ", message #" + i;
        // Make and send a datagram:
        byte[] sendData = outMessage.getBytes();
        s.send(new DatagramPacket(sendData, sendData.length, hostAddress, ChatterServer_agv.INPORT));
        // Block until it echoes back:
        s.receive(dp);
        // Print out the echoed contents:
        String rcvd = "Client #" + id + ", rcvd from " + dp.getAddress() + ", " + 
                       dp.getPort() + ": " + new String(dp.getData(), 0, dp.getLength());
        System.out.println(rcvd);
      }
    } catch(IOException e) {
      e.printStackTrace();
      System.exit(1);
    }
  }
  public static void main(String[] args) {
    for(int i = 0; i < 10; i++)
      new ChatterClient_agv(i).start();
  }
}